Spring-lock.



P. F. AUGENBRAUN.

SPRING LOOK.

APPLICATION FILED rm. 9, 1912.

Patented Aug. 6, 1912.

\llullglllf/ iTII} INI'IENTOR 3 g I I W W l/ 1 v UNITED STATES PATENTonnion.

IPE'JIIEIR. F. AUGENBRLA'UN, OF STAMFORD, CONNECTICUT, ASSIGNOR 'TO TEEYALE TOWNE 'MANUFACTUIRING COMPANY, OF STAMFORD, CONNECTICUT.

' "SPRING-LOCK. I

Qlorallwhom it may-coniccm:

Be it known that 1, PETER FF. AUonN- 1 emu-N, of Stamford, :in thecounty of Fairfield and State of' Connecticut, have invented certain newand useful Improvements in Spring-Locks; and =I do hereby declare thefollowing to'be a'full, clear, and exact de- .scriptionof the invention,such as will enable others skilled in the art to which it aplpfrtains tomake and use the same. I

y invention relates to an improvement in spring locks, the objectbeing-to provide -:a lock with thebolt actuating member normally restingwithin a recess 'in the face plate of the lock, so that it may besecured to a floor-board or box, Without having any members projectingto any great'extent beyond its face plate.

A further object is'to provide a spring lock of the character abovedescribed with Fig. 3 is a view in side elevation, and Fig.

4 is a view in end elevation of the same.

, 1 represents a face plate or casing adapted to be let into afloor-board, box, or other object where a projecting part would beobjectionable, and 2 is an end flange, the plate and flange havingsuitable screw holes for the passage of securing screws. This plate 1carries a lock 3, preferably. of the pin tumbler type as shown, the plug4 of which actuates a cam 5 which latter, in the present instance, ismounted to turn on the a plug and is actuated by the cam 6 rigidlysecured to' the plug, the said cam engaging the pins 7 pro ect-ing fromthe outer face of cam 5, whereby the cam 5 may be turned by the rotationof the cam 6 in either direction. Pin 7 forms a stop for limiting themovement of cam 5.

Mounted in the flange 2 of the face plate, is the bolt 8, provided atits inner end with a stem. 9, which passes through the bearing 10secured to or integral with the inner face of plate 1, and embracing thestem 9, is the Specification of Letters Patent.

Application filed February )9, 1912. Serial No; 676,660.

Patented Aug. 6,1912.

1 spring '11, which i-latter tends .to normally hold the'bolt'8 initsrprojected position as shown.

The bolt is recessed in its ".front 'face to form the shoulder .12,'agai twvhichithe inwardly projecting end :13 o thelabohnctuatmgmemberior lever 1 4bears. 'This member 14 is pivoted at 15to t-heifaoe plate-and normally=rests within. arecessed'seatlformedinthe front face of the plate 1,-so as'to-be flush'with'the outersurface of-saidplate 'as shown in Figs. 1 and 3. It is preferably madering shape as-shown so astobe convenlently grasped and actuated, and theportion of the face plate immediately'below the open center of'the'boltactuating-memher 14 is depressed asat '16 whereby theends of thefingers may engage'the ring shaped member from below or a at its innerslde, when it is desiredto actuate-the bolt.

It will be evident from the construction as illustrated 'thatlay-grasping andpulling outwardly 'on the bolt actuating member 14, so-as-to turn same from its positionflush with the face plate, up to anangle of about ninety degrees or less to said face plate, that theinwardly projecting end 13 of the bolt actuating member, bearing againstthe shoulder 12 on the bolt acts as a cam and forces the bolt inwardlyto release it from its keeper. Thls movement of the bolt puts spring 11under compression, hence as soon as the actuating member 14 is released,the spring forces the bolt outwardly and the shoulder 12 hearing againstthe bent end of actuating member, turns the same down into its recessedseat in the face plate, and holds it there a ainst accidental movement.Cam 5 is located in the plane of the stem 9 of the bolt, and whenturned, as in Fig. 2, to bear against said stem, it deadlocks the latteragainst movement and also looks the bolt actuating member 14 againstoutward movement. By turning the cam 5 one hundred and "eighty degreesor less so as to carry its cam face away from the stem 9, sufiicientroom is provided for the full throw of the bolt, by the actuating member14. With this improvement the spring bolt is normally in its lockingposition and is retracted by moving the bolt actuatin member outwardlyfrom its position flus with the face late, and as soon as said member isrelease the spring 11 acting against the bolt throws the latter to itsprojected position and also turns the bolt actuating mem ber back intoits recess in the face plate. By actuating the lock 4, cam 5 will beturned to a -position to deadlock. the bolt, and obviously when the boltis dogged by the cam, the bolt actuating member will also be heldagainst'movement from its flush position in the face plate.

It is evident that changes in the construction and relative arrangementsof the several arts might be made without avoiding my invention andhence I would have it understood that I do not'restrict myself to theparticular construction and arrangement of parts shown and described,but,

Havin fully described my' invention what I cfilim as new and desire tosecure by .Letters-Patent, is: Y

1. In aspring lock, the-combination of a face plate or casing having arecessed outer face, a bolt provided with an-outwardly projectingshoulder, a spring normally tending to hold the bolt projected, and abolt actuat ing member pivoted to the face plate or casing, normallyresting in said recess, and provided with an inwardly projecting partvlocated in front of, and adapted to engage the outwardly projectingshoulder on the bolt.

2. In a spring lock, the combination of a ing witnesses.

face plate or casing having a recessed outer face, a bolt provided withanout-wardly proj ecting shoulder, a spring normally tend ing to holdthe bolt projected, a bolt actuating member pivoted to the face plate orcasing,'normally resting in said recess and provided with an inwardlyprojecting part located in front of and adapted to engage'the outwardlyprojecting shoulder on the bolt, and a key-lock for deadlocking saidbolt.

3. The combination of a face plate or casing, a bolt, a spring normallytending to hold the bolt projected, a bolt actuating member pivoted tothe face plate of thecasing, and provided with a part engaging the boltwhereby when said actuating member is moved outwardly from the faceplate the bolt will be retracted, a camlocated in the plane of the rearend of the bolt and adapted to be turned to engage said bolt, and a keylock for actuating the cam to lock and release the bolt.

In testimony whereof, I have signed this 7 specification in the presenceof two subscrib- PETER AUGENBRAUN'.

Witnesses:

SGHUYLER MERRITT, EDITH M. ORozmR.

